Settings: transform search keyword to lower case

Author: C3C0

src/com/ceco/oreo/gravitybox/GravityBoxSettings.java

@@ -1206,7 +1206,7 @@ public boolean onQueryTextSubmit(String text) {
                     Toast.makeText(GravityBoxSettings.this,
                             R.string.search_keyword_short, Toast.LENGTH_SHORT).show();
                 } else {
-                    mSearchQuery = text.trim();
+                    mSearchQuery = text.trim().toLowerCase(Locale.getDefault());
                     searchView.clearFocus();
                     search.collapseActionView();
                     search.setVisible(false);